204421884 has 24 divisors (see below), whose sum is σ = 497723520. Its totient is φ = 65177904.

The previous prime is 204421883. The next prime is 204421897. The reversal of 204421884 is 488124402.

It is a super-3 number, since 3×204421884³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204421883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370054 + ... + 370605.

It is an arithmetic number, because the mean of its divisors is an integer number (20738480).

Almost surely, 2^204421884 is an apocalyptic number.

It is an amenable number.

204421884 is an abundant number, since it is smaller than the sum of its proper divisors (293301636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204421884 is a wasteful number, since it uses less digits than its factorization.

204421884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740689 (or 740687 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 33.

The square root of 204421884 is about 14297.6181233099. The cubic root of 204421884 is about 589.0820581643.

The spelling of 204421884 in words is "two hundred four million, four hundred twenty-one thousand, eight hundred eighty-four".